它把表示层和应用程序层分隔开。
It keeps the presentation layer separate from the application layer.
改变的只是新表示层处理UI的方法。
What has changed is the way the new presentation layer handles the UI.
使用者层有时候称为表示层。
The consumer layer is sometimes called the presentation layer.
创建用户界面的表示层。
数据以域对象或值对象的形式提供给表示层。
Data is provided to the presentation layer in the form of domain objects or value objects.
负责表示层的代码。
表示层提供了用户界面以及适应性表示和导航。
The presentation layer provides the user interface as well as the adaptive presentation and navigation.
这让编程新手也能够创建复杂的Web表示层。
This puts the creation of sophisticated Web presentation layers within reach of novice programmers.
因此，变更映射能够在表示层觉察到。
As a result, a mapping change can be felt as far as the presentation tier.
底层表示层的JSP变化不是很频繁。
Have underlying presentation-layer JSPs that don't change frequently?
惟一的不同点在于客户端的本质和中间层的表示层。
The only differences are the nature of the client and the presentation layer of the middle tier.
该核心并不依赖于任何特定的表示层技术。
This core has no dependency to any particular presentation technology.
此外SDO对象可以在表示层和业务层间传递信息。
Additionally, an SDO object can be used to carry information between the presentation layer and the business layer.
其基本概念与把表示层和代码分隔开的其他框架相似。
Basic concepts resemble other frameworks that separate the presentation layer from the code.
JSP文件充当表示层组件，他们包含在下载文件中。
The JSP files make up the presentation layer components; they are included in the download file.
模板层背后的思想就是表示层代码与业务层代码分离。
The idea behind the Template layer is that the presentation layer code is separate from the business-layer code.
分离了表示层和业务逻辑的程序也很容易被测试。
Testing also becomes easier when you separate presentation and domain logic.
另一方面，数据的解析并不是一个非常适合于表示层的任务。
On the other hand, the parsing of data is not a task well-suited to the presentation layer.
清单8中显示了构成表示层核心的xml模型和XSL模板。
The XML model and XSL template forming the core of the presentation layer are shown in Listing 8.
另外，管理人员也反对修改现有的表示层和业务层。
In addition, management is resistant to altering the existing presentation and business layers.
这里我们假设表示层逻辑不如后台的商务逻辑重要。
We assume here that presentation logic is less _valuable_ than the back-end business logic.
表示层(并非本文的重点)使用Struts框架。
The presentation tier (not the focus of this article) USES the Struts framework.
通过加强来自请求处理程序的响应为表示层提供所需的模型数据。
Providing required model data for the presentation layer by consolidating responses from request handlers.
对数据层的修改会更新表示层，对表示层的修改也会更新数据层。
Changes to the data layer update the presentation layer, just as changes to the presentation layer will update the data layer.
helper类提供数据库和表示层支持类（请参见图2）。
The helper classes provide database and presentation layer supporting classes (see Figure 2).
模型指数据，视图指表示层，而控制器指应用程序逻辑或业务逻辑。
Model refers to your data, View to your presentation layer, and Controller refers to the application or business logic.
为什么不让这个表示层产生友好的Ajax用户体验呢？
And why not make this presentation a friendly Ajax experience?
图一：BLL将表示层与DAL隔开了，并且加入了业务规则。
Figure 1: the BLL Separates the Presentation Layer from the Data Access Layer and Imposes Business rules.
此模式鼓励您分层（表示层、域层、数据访问层）处理应用程序。
This pattern encourages you to treat an application in layers -- presentation, domain, data access.
表示层：引入了门户，为用户提供跨业务活动范围的统一用户体验。
Presentation layer: Introducing a portal provides a unified user experience across a range of business activities.
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